Run apt upgrade after modifying the docker/podman sources

roles/float-base-docker/tasks/podman.yml

@@ -2,6 +2,13 @@
 
 - include_tasks: "podman_{{ podman_package_source }}.yml"
 
+# If we've changed sources.list for podman, it is important
+# that we run apt upgrade now.
+- name: Apt upgrade
+  apt:
+    upgrade: 'yes'
+  when: "podman_sources_list.changed"
+
 - name: Symlink podman to docker
   file:
     src: /usr/bin/podman

roles/float-base-docker/tasks/podman_ai.yml

@@ -19,6 +19,7 @@
   apt_repository:
     repo: "deb [signed-by=/usr/share/keyrings/deb.autistici.org.gpg] http://deb.autistici.org/urepo buster-podman/"
     state: present
+  register: podman_sources_list
 
 - name: Pin podman packages to our repository
   copy:

roles/float-base-docker/tasks/podman_debian.yml

@@ -24,6 +24,7 @@
   file:
     path: "/etc/apt/preferences.d/99podman"
     state: absent
+  register: podman_sources_list
 
 - name: Install Podman packages
   apt:

roles/float-base-docker/tasks/podman_kubic.yml

@@ -18,6 +18,7 @@
   apt_repository:
     repo: "deb http://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/stable/Debian_10/ /"
     state: present
+  register: podman_sources_list
 
 - name: Remove podman package pins
   file: